By Topic

A quantization method of direct noise shaping and level matching for the low complexity implementation of MPEG-4 AAC encoder

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Byoung-Il Kim ; Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea ; Eun-Seo Lee ; Tae-Gyu Chang

This work presents a new structure of MPEG-4 AAC encoder. The proposed encoder directly shapes quantization noise distribution according to the energy distribution and thereafter performs adjustment of the offset level of the noise distribution to meet the target bit rate. The direct noise shaping and the bit rate matching scheme significantly alleviate the problem of processing burden of the conventional encoder related with the precise modeling of the psychoacoustics and iteration intensive quantization.

Published in:

2005 Digest of Technical Papers. International Conference on Consumer Electronics, 2005. ICCE.

Date of Conference:

8-12 Jan. 2005